Filtration system



FIG. 1 is a front perspective view of the filtration system in accordance with the present invention;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is an exploded view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a left view thereof; and,

FIG. 9 is a right view thereof.

The broken line illustrations in the foregoing figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a filtration system, as shown and described. 